diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cartesian/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cartesian/textbook.fr.md
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!!! Estructura para cualquier elemento nuevo del curso, para copiar o reproducir :
!!! Structure pour tout nouveau élément de cours, à copier ou reproduire :
!!! Structure for any new course element, to copy or reproduce :
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* *COOSYS-xxx*
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### Coordonnées cartésiennes / coordenadas Cartesianas / Cartesian coordinates
#### Définitions / definiciónes